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Updated: Aug 17, 2025

An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components

An Additive Manufacturing Technique for the Facile and Rapid Fabrication of Hydrogel-based Micromachines with Magnetically Responsive Components

Published on: July 18, 2018

Programmable aniso-electrodeposited modular hydrogel microrobots.

Zhiqiang Zheng^1,2, Huaping Wang^1,3, Sinan Ozgun Demir²

¹Intelligent Robotics Institute, School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China.

Science Advances

|December 14, 2022

Summary

This summary is machine-generated.

Researchers developed a novel single-step fabrication method for modular microrobots (MMRs). These programmable microrobots exhibit complex shape-morphing abilities and can perform multiple tasks simultaneously.

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Last Updated: Aug 17, 2025

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Area of Science:

Robotics
Materials Science
Microfabrication

Background:

Complex shape-morphing systems are crucial for microrobotics, but current fabrication methods are often complex and time-consuming.
Living organisms achieve shape morphing through nonuniform structural composition, inspiring advanced robotic designs.
Existing microrobot designs struggle with intricate architectures and lengthy fabrication processes.

Purpose of the Study:

To propose a novel, single-step aniso-electrodeposition method for fabricating modular microrobots (MMRs).
To enable programmable shape morphing capabilities in microscale structures.
To create multifunctional microrobots capable of diverse tasks.

Main Methods:

Utilized a single-step aniso-electrodeposition technique to fabricate modular microrobots.
Programmed electric fields to control the shape-morphing capabilities of microscale stripe-shaped structures.
Integrated multiple independent modules for loading cells, drugs, and magnetic nanoparticles.

Main Results:

Achieved diverse shape-morphing capabilities including spiraling, twisting, bending, and coiling.
Successfully fabricated modular microrobots with distinct functional segments.
Demonstrated multifunctionality through the integration of various payloads (cells, drugs, nanoparticles).

Conclusions:

The proposed aniso-electrodeposition method offers an efficient approach to fabricating programmable, shape-morphing modular microrobots.
These MMRs can perform multiple tasks like propulsion, grasping, and delivery simultaneously.
The developed microrobots hold significant potential for applications in sensing, actuation, and manipulation.